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				 Hits: 1811     Replies: 0 
		
				Use of 12Y4
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			Martin Bösch
			 26.Mar.19  | 
			
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 According to informations discussed in the Wireles Set No. 19 Group, the valve 12Y4 (corresponding to CV523) was introduced in 1944 and saw use in the Canadian Wireless Set. No. 9 Mk I and Canandian Wireless Set No. 52. It used a socket B5 (usually found in military sets) and could be replaced by a 12H6 with a matching octal to B5 adaptor. The valve was a Canadian RVC equivalent to the ARDD1 or Brimar 10D1 valves which were used in the Wireless Set. No. 9. Hope this helps, kind regards Martin  | 
		
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				 Hits: 3442     Replies: 0 
		
				12Y4 (12Y4)
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			Olivier Palix
			 18.Feb.09  | 
			
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 As the ARP3,the 12Y4 is used on the WWII Canadian set C52.One for agc and detection,the second for noise limiter. 
 
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